that might be tricky as something like fate which is stated to do everything in terms of genre loses some robustness compared to crunchier systems in exchange for being light. 

But yeah core mechanic should be add Skills and Traits for relevant action and roll 3d6. Unsure if you want exploding dice which makes things funky. 

Or how you want to deal with things like super powers or flashy shonen anime type fighting moves. 

Also things like health and fights.